Lubricating means for machines



Dec. 3, 1929. w. A. cooK LUBRICATING MEANS FOR MCHINES 'Filed 001'.. 26. 1925 5 SheetS-Sheet ATTORNEY5.

Dec. 3, 1929. w. A. cooK LUBRICATING MEAS FOR MACHINES Filed Oct. 26, 1925 3 Sheets-Sheet 2 INVENTOR.

WMA/HM KTHHA 500K.

A TTORNEYS.

Dec. 3,1929. w. A. coOK LUBRICATING MEANS FOR MACHINES 3 Sheets-Sheet 3 Filed OGb. 26. 1925 INI/EN TOR.

WML/m1 ier/mk 600K.

A TTORNEY5.

Patented Dec. 3, 1929 lil@ WILLIAM ARTHUR 0001K, F MARION; INDIANA, As'sI'GNon' To MARION MACHINE, FOUNDRY & SUPPLY COMPANY, on MARION; INDIANA, A CORPORATION L'BRICTING FOR MACHINES Application`r filed October 26; 1925.- Serial No.f 64,906;

This invention is an improvementy in means for the automatic lubricationY of ma-` chines of' various kinds-and particularly band wheel power mechanism commonly employed in driving the pumpsof anumber of oil'wellls. The'inventionihas been made withl particular reference to the latter purpose, although it is not limitedfto any particular formy of mafchine where' the gravity/feed of the oil to the parts of the machine is employed. The use of a pump for automatically returning the oil to the topof the machine whereby it can be fed downby gravity through the ma chine and to the parts thereof and collected in a reservoir from whichit is again returned to'thepump,is broadly old, butv my present invention has certain important improve; ments over lubricating systems ofthis type as will hereafter appear.

One feature of? the invention consists in having an annular reservoir in the stationary lower part or base of the machine concen tric with the vertical shaft of the'machine'in which reservoir there is provided means for the operation of a pump, which extends dow-n into the reservoir and is revolvedv therein. The particular meansinthe reservoir herein provided is an annular cam tracky inthe reservoir upon which a roller on the lower end of the pump plunger travels and whereby the pump is operated.

Other features of the inventionrelateto the means at theupper end of the machine for receiving the oil from the pump` and distributing' it to the parts of the machine through which it' afterwards moves bygravity backto the reservoir,` aslwill more f-ully hereafter appear.

The full nature of the invention' will be understood from the accompanying` draw ings and the following` description and claims: y

In the drawings,-Figure l is a view ofv the machine showingV -he major portion thereof in central vertical section and other portions in elevation, parts being omitted. FigLAQ is aV plan view ofi the upper hubilangewith the cap thereon removed and the shaft in cross section and the spolres broken partially away. Fig. 3 is a plan view of the eccentrics and base'of the machine. Fig. 4 is alsection of a portion of the upper eccentric oir the line LiL-4of- Fig. 3.- Fig. 5 is a plan view of the base showing the shaft in section. Fig. Gis a centrall vertical section ofthe pump. Fig. Z is a: section through the base andr lower ec centric on the linehf? of Fig; 3, arts being broken away. Fig.l 8-is'a` vertical section of the'upper eccentric onA the line 8-8 ofI Fig- 3,` but ony a' smaller scale.

The machine herein shown for illustrating thisinvention is whatis l called' a band wheel power. It hasa stationary base l0 having a vertical cup' bearing. ll in themiddle thereof for'the lower end off the stationary shaft 12. The upper end of said shaft is held by brace rods,notshown.` There is a hub 15 on said shaft for the band wheel lGthat' is horik Zontally disposed and isheld in* place by an upper series of spokes-17, connected to the ears18 (inthe-upper hub flange 19 anda lower series of spokes 2O connected tothe ears 21 on, the lower hub Harige 22.` The band wheel 161 is driven by a belt,lnot shown, extendedA froman* engine or other' forms of power alsoy not-shown.

The power is transmitted to pumps at oil' wells by rods,` not shown,v connected with eccentric rings 25 which surround eccentrics 26 that are fiXedly connected with the hub so as torotatetherewith on the shaft 12. Thus7A the eecentrics'and hub andr hub flanges and band wheel' constitute a' rigid unit and supported by a suitable bearing 27 onl the base 10. Any desired number of ee centrics may be used but usually there are two'as here' shownyand they extend iny opposite directions.

The general features of the mechanism shown andV soV far described, are old and in general use but this inventionl relates to the means for Aautomatically lubricating said machinery. Since these machines are out in the field in the country andscattered and may operate continuously forlong periodsy of time, the lubrication thereof is of great I importance for their continuous and properr operation.

In a machine herein shown the base has an oil reservoir which 1s concentric with the shaft and it is supplied through the connections 3l and 32 with oil from a distantoil tank 33,` located wherever it is most convenient.

rises and fallssubstantially as shown. i

The pump 36 is mounted vertically'in the lower eccentric 26 so as to extendjdown into the reservoir and in vertical alignment with the cam track. VThe pump plunger 136 carries on its lower end a roller 37 which rides and travels upon the camtrack as the pump is carried around in its revolutions by the lower eccentric 26, and vthereby the plunger is elevated and a spring 137 in the tubular of the pump and jon the up stroke of the plunger it is forced out through chamber 44, past check valve into pipe 46 which communicates with a pipe 47 that extends vertically through the upper eccentric andy the two hub flanges 22 and 19, and at its upper end said tube is turned downward at 48 so as to discharge the oil through an opening 49 of a cover or cap 50 into an. oil receiver 51 surrounding'the shaft. Y

"The oil which has been elevated by the pump mechanism described'and discharged into'the oil receiver 51 is distributed to the machine for lubricating it by the following means. ber 52 which is divided -into two comp/artments by the annularrib 53. The inner compartment 54 immediately surrounds the shaft and oil is'supplied to it through the ports 55 in the oil receiver 51, and the oil from chamber 54 passes down by gravity between the shaft and hub thereon and between the shaft and the eccentrics and to the bearing that supports the structure on the base.Vl l

The oil passes from the oil receiving ,chamber through ports to the outer oil hamber 52 at the top and thence through tubes 61 and r 62 that extend through theupper and lower In the bottom of this reservoir 30 there is a cam track 35 that iscontinuous and con-' centric with the shaft and its upper surface The oil receiver 5l is in an oil chamhub c ap, outside the hub, and the lower ends of said tubes project into oil pockets 63 and 64 in the upper eccentric 26. From each of said oil pockets there is an outwardly extending conduit 65 leading to the bearingsurface between the eccentric and the eccentric ring 25for lubricating the same. The oil from said bearing surfaces descends to and is received by an annular reservoir 66 in the outer periphery ofl the eccentric and extending beyond the same like a lip under the eccentric ringV as shown. From this reservoir 66 there 63 there arefoverflowpassages 68 and 69y leading down through the upper eccentric and discharging into a pocket 63 or 64 in the lower eccentric and counter roverflow vpassages in the lower eccentric discharging into the maint reservoir 30 in the base.

The invention claimed is:

1. In apparatus of the kind described, a stationary base having a central portion and an open-top oil reservoir surrounding said central'portion, a vertical shaft with its lower end mounted in said central portion of the base, armachine part mounted on said shaft and horizontally revolvable above said base, a vertical pump carried by said revolvable machine part which extends down vinto said reservoir in the base and is revolved'thereby concentric with said shaft so as to travel annularly in said reservoir, a vertically-acting plunger in said pump, a roller on the lower end of the plunger, an upwardly-extending cam track in the vbottornof the Yreservoir and surrounding said central portion of the base and concentric with said shaft in position for said roller to travel thereon as the pump revolves and whereby the pump plunger is operated, a conduit leading from the pump for discharging oil from said reservoirY to the upper end of the machine, whereby the oil can be fed by gravity' through the machine for lubricating the same, and means for returning said downwardly-moving oil to said reservoir. f

2. In apparatus ofthe kind described, a stationary base with a central upwardly-extending portion and an open-top annular oil reservoir entirely surrounding said' central portion, aV vertical shaft with its lower end mounted insai'd central portion of the base and centrally of said reservoir and extending above the base, machine parts mounted on said sha-ft which revolve horizontally above said base, an annular vertically-extending cam track on the bottom of said reservoir and concentric with said'shaft, a pump carried by a revolving part of the machine so that the pump will project downwardly into and travel in said. annular reservoir with its piston vertically arranged to travel above said cam track, a roller on the lower end of the piston which rides upon said cam track for operating the pump, an oil reservoir in the upper part of the machine surroundingsaid Shaft, a conduit leadingr from the pump discharging the pumped oil to said reservoir, and drain conduits leading from said upper 10 reservoir through the machine parts and eX- tending and discharging into said oil reservoir in the base.

In Witness whereof, I have hereunto aflixed my signature.

15 WILLIAM ARTHUR COOK. 

